Global Patent Index - EP 1652567 A2

EP 1652567 A2 20060503 - Method for producing silicon nitride filter

Title (en)

Method for producing silicon nitride filter

Title (de)

Verfahren zur Herstellung eines Siliziumnitridfilters

Title (fr)

Procédé pour produire un filtre en nitrure de silicium

Publication

EP 1652567 A2 20060503 (EN)

Application

EP 05021741 A 20051005

Priority

JP 2004292616 A 20041005

Abstract (en)

A method for producing a silicon nitride filter, which comprises subjecting a molded product comprising from 35 to 58 mass% of metal silicon particles, from 30 to 62.5 mass% of organic polymer particles, from 0.3 to 10 mass% based on the content of the organic polymer particles of the following inorganic particles A and from 1 to 15 mass% based on the content of the metal silicon particles of the following inorganic particles B, to a heat treatment in nitrogen to substantially convert metal silicon into silicon nitride: inorganic particles A: inorganic particles of at least one member selected from the group consisting of an oxide, a hydroxide and a salt of an element selected from the group consisting of Si, Ti and Ce; inorganic particles B: inorganic particles of at least one member selected from the group consisting of an oxide, a hydroxide and a salt of an element selected from the group consisting of Mg, Y, La, Nd, Yb, Ca and Fe.

IPC 8 full level

B01D 39/20 (2006.01)

CPC (source: EP)

B01D 39/2075 (2013.01); B82Y 30/00 (2013.01); C04B 35/584 (2013.01); C04B 35/591 (2013.01); C04B 38/067 (2013.01); C04B 38/0675 (2013.01); C04B 2111/00793 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3227 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3272 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/46 (2013.01); C04B 2235/48 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/6582 (2013.01); C04B 2235/767 (2013.01); C04B 2235/77 (2013.01); C04B 2235/96 (2013.01); C04B 2235/9607 (2013.01)

C-Set (source: EP)

  1. C04B 38/067 + C04B 35/591 + C04B 38/0054 + C04B 38/069
  2. C04B 38/0675 + C04B 35/584 + C04B 38/0054 + C04B 38/069

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1652567 A2 20060503; EP 1652567 A3 20070307; JP 2006102631 A 20060420; US 2006071374 A1 20060406

DOCDB simple family (application)

EP 05021741 A 20051005; JP 2004292616 A 20041005; US 24050905 A 20051003